Bless vs dhex

Bless is a free binary editor for editing files as sequences of bytes. It supports multilevel undo and redo, customizable data views, multiple tabs, and fast find and replace. The project highlights efficient handling of large data files and raw disk editing, with search and save operations running in multiple threads. Bless exports to text and HTML, while plugins can add other export formats and extend the editor. It is written in C# with Gtk# bindings for GTK+ and distributed under the GNU General Public License, version 2 or later. GNU/Linux is the main target; listed supported platforms are Linux and Windows, and the README says it should also run on *BSD, Solaris, and Win32. Building the current version requires GTK+, a Mono/.NET runtime and C# compiler, Gtk# bindings, pkg-config, and Meson. The GitHub releases page has no releases, and the README provides source-build instructions. NEWS lists version 0.6.3 dated 2020-10-11. Saving a changed-size file under the same name requires temporary space for both files; same-size files save in place.

dhex is a free hex editor for inspecting binary files and comparing two of them in diff mode. It uses a terminal interface built on ncurses and is listed for Linux and macOS; the maker also says it is known to run on HP-UX, FreeBSD, NetBSD, MacOS X, IRIX, and Solaris. Search logs can help track changes between file iterations, and the editor supports themes that users can download or submit to the maker. Command-line search can find single words and quoted strings. The .dhexrc configuration file can set header colors, while a base-address option can help when loading partial memory dumps. A correlator introduced in version 0.64 can help match an object file to an executable for comparison. The maker provides downloads including version 0.69, listed as the latest update for the 0.6x branch and dated 19 January 2019. The maker warns that version 0.64 crashes at startup on some systems. dhex is free, with no free trial.